In the six months preceding the survey, 40 per cent of them had spent £18 or less on textbooks.
But instead of relying on textbooks, teachers are trying a new approach.
This year's subsidies may total $1 billion, more than Mexico has spent on textbooks in the past decade.
While in the legislature he wrote the bill that became the state's law on textbooks.
But little of the money allocated for the classroom is being spent on textbooks.
Now, compare that to how much money is spent on textbooks by a school.
New Jersey's public and private schools spent an average of $70.67 on textbooks, compared with $41.90 nationwide, the association found.
He continued both to work on textbooks for his people and to write poetry.
Teachers, in turn, rely on textbooks that allow little variation.
Individual students spend between $700 and $1,000 annually on textbooks, the study says.